3 more clarity
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I had a similar problem with an external HDD in a USB enclosure. The USB spec is .5A, but some drives, like mine and possibly yours, need more to spin up. Most modern desktop and laptop computers supply more, so I had never had a problem before.

One solution I am trying is a Y cable, once it arrives, so I can hopefully get more power to the USB drive. This may work… [Update - it did work when I plugged it into the external USB hub!]

Another is an enclosure with its own power supply.

With a 4A converter, you'd expect that USB hub to be able to deliver a little more, but it may cap the power at .5A for each.

I had a similar problem with an external HDD in a USB enclosure. The USB spec is .5A, but some drives, like mine and possibly yours, need more to spin up. Most modern desktop and laptop computers supply more, so I had never had a problem before.

One solution I am trying is a Y cable, once it arrives, so I can hopefully get more power to the USB drive. This may work… [Update - it did work!]

Another is an enclosure with its own power supply.

With a 4A converter, you'd expect that USB hub to be able to deliver a little more, but it may cap the power at .5A for each.

I had a similar problem with an external HDD in a USB enclosure. The USB spec is .5A, but some drives, like mine and possibly yours, need more to spin up. Most modern desktop and laptop computers supply more, so I had never had a problem before.

One solution I am trying is a Y cable, once it arrives, so I can hopefully get more power to the USB drive. This may work… [Update - it did work when I plugged it into the external USB hub!]

Another is an enclosure with its own power supply.

With a 4A converter, you'd expect that USB hub to be able to deliver a little more, but it may cap the power at .5A for each.

2 updating my answer - my test worked
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I had a similar problem with an external HDD in a USB enclosure. The USB spec is .5A, but some drives, like mine and possibly yours, need more to spin up. Most modern desktop and laptop computers supply more, so I had never had a problem before.

One solution I am trying is a Y cable, once it arrives, so I can hopefully get more power to the USB drive. This may work… [Update - it did work!]

Another is an enclosure with its own power supply.

With a 4A converter, you'd expect that USB hub to be able to deliver a little more, but it may cap the power at .5A for each.

I had a similar problem with an external HDD in a USB enclosure. The USB spec is .5A, but some drives, like mine and possibly yours, need more to spin up. Most modern desktop and laptop computers supply more, so I had never had a problem before.

One solution I am trying is a Y cable, once it arrives, so I can hopefully get more power to the USB drive. This may work…

Another is an enclosure with its own power supply.

With a 4A converter, you'd expect that USB hub to be able to deliver a little more, but it may cap the power at .5A for each.

I had a similar problem with an external HDD in a USB enclosure. The USB spec is .5A, but some drives, like mine and possibly yours, need more to spin up. Most modern desktop and laptop computers supply more, so I had never had a problem before.

One solution I am trying is a Y cable, once it arrives, so I can hopefully get more power to the USB drive. This may work… [Update - it did work!]

Another is an enclosure with its own power supply.

With a 4A converter, you'd expect that USB hub to be able to deliver a little more, but it may cap the power at .5A for each.

1
source | link

I had a similar problem with an external HDD in a USB enclosure. The USB spec is .5A, but some drives, like mine and possibly yours, need more to spin up. Most modern desktop and laptop computers supply more, so I had never had a problem before.

One solution I am trying is a Y cable, once it arrives, so I can hopefully get more power to the USB drive. This may work…

Another is an enclosure with its own power supply.

With a 4A converter, you'd expect that USB hub to be able to deliver a little more, but it may cap the power at .5A for each.